Grade: Y1Cr18Ni9Se
Standard: GB / T 1220-1992
● Features and Scope:
to improve the cutting resistance, ablative World pipe network reported that the world's steel pipe network to provide the world's steel pipe network editor . Most suitable for use in automatic lathes. Rivets, screws.
● chemical composition:
Carbon C: ≤ 0.15
silicon of Si: ≤ 1.00
Mn Mn: ≤ 2.00
SS: ≤ 0.060
phosphorus P: ≤ 0World Steel Pipe .020
chromium Cr: 17.00 ~ 19.00
Ni - Ni: 8.00 ~ 10.00
Mo of Mo: can be added ≤ 0.60
Note: Se ≤ of 0.15
● Mechanical Properties:
tensile strength σb (MPa) : ≥ 520
conditions yield strength σ0.2 (MPa): ≥ 205
the elongation δ5 (%): ≥ 40
section shrinkage rate ψ (%): ≥ 50
hardness: ≤ 187HB; ≤ 90HRB; ≤ 200HV
● heat treatment and microstructure:
heat treatment specifications: rapid cooling solution 1010 ~ 1150 ℃. The Metallographic of
organizations: organizational characteristics of austenitic.
● Delivery Status: in general to heat treatment delivery, the treatment types specified in the contract; not indicated, according to the Steel Co., Ltd..